...劳损；腰劳损；背劳损；lumbar muscle strain；backstrain） 期前收缩 （早搏；期外收缩；过期前收缩动；premature contraction；extrasystole；bearing premature；extra systole） ..
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期前收缩（premature contraction）是由心脏异位兴奋灶发放的冲动所引起。按其发生部位可分为房性、房室交界性及室性期前收缩，其中以室性期前收缩最常见。
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过早搏动(premature contraction)简称早搏,又称 期外收缩 ( extrasystole )或期前收缩(presystole),是小儿最常见的心律失常,占各种心律失常的37.7%.
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... premature contact of incline plane 早期斜面接触 premature contraction 早期收缩 premature decay 早衰 ...
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ventricular premature contraction 室性早搏 ; 心室早期收缩 ; 室性期外收缩 ; 室性期前收缩
atrial premature contraction 房性期前收缩 ; 房性早搏
junctional premature contraction 房室节早期收缩
ventircular premature contraction 室性过早收缩
premature ventricular contraction 室性早搏 ; 心室性早期收缩 ; 繁发作的室性早搏
benign premature contraction 良性早搏
venricular premature contraction 心室期前收缩
During proecedure main cardiac arrhythmia found its expression in node tachycardia beat(81.8% ), ventricular premature contraction (45.5% ) and after procedure in sinus rate variation.
术中主要的心律失常是交接区心动过速（81.8％）及室上性期前收缩（45.5％），而术后主要是窦性心率增快。
The study was focused on heart rate(HR) variation of sinus rhythm before 5 minutes attacking, relationship between premature atrial contraction, coupling interval and PAF episodes.
研究PAF发作与窦性心室率、前5分钟窦性心律的心率变异、房性期前收缩及其配对间期的关系。
Conclusion: Trimetazidine combined with mexiletine could significantly inhibit premature ventricular contraction in patients with coronary heart disease and slow ventricular rate.
结论：曲美他嗪联合美西律对冠心病并发的室性早搏可产生显著的抑制作用。
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